Buffer for automobiles.



F. G. FEHRMAN.

BUFFER FOR AUTOMOBILES.

APPLICATION FILED snmxzz, 1911,

. 1,035,332, Patented Aug. 13,1912.

WITNESSES INVENTOR I Fmvl'ederick C. F'ehr'mqn, 6

ATTORNEY Butlers for Automobiles,

further,

' construction of the UNITED STATES PATENT ()HhlGE.

FREDERICK'C. FEHRMAN, OF

GROFFS STORE, PENNSYLVANIA.

BUFFER FOR AUTOMOBILES.

Application filed September 22. 1911.

Specification of Letters Patent.

Patented Aug. 12;, 1912.

Serial No. 650,677.

To all whom it may concern:

Be it known that I, Fiunmmcn C. I mm- MAN, a citizen of the UnitedStates, residing at Grotfs Store, in the county of Lancaster and Stateof Pennsylvania, have invented certain new and useful Improvements in ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to a buffer for automobiles, and moreparticularly to the impact cushioning means and the means employed forsecuring the device to the vehicle.

While I am aware that there are numerous devices for this purpose theyrequire special holes to be drilled through the frame of the vehicle inorder to attach them thereto; and there are rarely any means provided tocompensate for the spring movement of the vehicle.

The object of my invention is 'to provide a device of this class thatmay be readily attached to the vehicle without disturbing the same, andwhich shall also be simple, cheap and durable.

Another object of the invention is to provide means for compensating forthe spring movement of the vehicle.

Still another object is to so construct the device that the cushionimpact springs are concealed and adjustable attaching means are providedfor securing the same to the vehiele.

W'ith these and other objects in view, my invention consists in acertain construction and combination of parts as will hereinafter befully described and claimed in the annexed specification, andillustrated in the accompanying drawings which form a part of thisapplication, and in which like figures .of reference refer tocorresponding arts in all of the views; but it is fully understood thatwhile I have here described my invention as shown, that I do not confinemyself to the exact design, as slight changes may be made in theconstruction and arrangement of the several parts without departing fromthe spirit of the invention.

In the drawings :-I igure 1, is a top plan View of the device as appliedto an automobile. Fig. 2, is a side elevation of the same. Fig. 3, is alongitudinal sectional view of the impact cushion means. Fig. 4, is abottom plan view of a spring compensating device.

Fig. 5, is a front frame clamp.

referring to the drawings. the channel frame of the automobile isindicated by the numeral 1, and the vehicle springs which are pivoted.thereto by the numeral The buffer comprises the bumper bar I), to whichare secured the forward ends of the impact cushion members by the set,screws 4. The impact cushion members comprise the outer tulmlar member5, secured to the bumper bar 3, as above stated. and the plunger (3,which formed with the reduced portions 7, and Said plunger (3 has ahead, which is curved to conform to the end of the vehicle frame 1, saidhead being also provided with the bifurcated ear 10, and the orifice 11,communicating with the axial hole 12. \Vithin said hole 12 is mounted arod 15",, formed with a head 14, contained within the orifice 11, and athrezuledend 15, for securing the same to the outer end of the tubularmember 5, for the purpose of preventing the withdrawal of the plungermember from the tubular member and also limiting its movement. F orkeeping the member in a normally extended position and providing acushion means, the coil swing to, is provided within the tubularmembenand embraces the reduced portion 8, of the phmger. For clampingthe device to the vehicle there is provided the arm 17, which isprovided within the upper bifurcated car 10, by the pin 18. and which isformed at its rear end with the U-shaped clamp 19, adapted to engage thevehicle channel frame 1, and cooperate with the U-clamp 20, whichengages the lower part of the frame 1, and is secured to the clamp 19,by the bolt 21; said clamp 19, also being provided with a set screw 22,for engaging the frame 1, and preventing slipping.

'lhe lower bifurcated ear thereto the end of a rod 23, by the pin 24.The rear end of said rod 23, passes through a hole formed in a lug 25,which projects downward from a clamp 26, secured to the spring 2, of thevehicle; and the end of said rod 23, is threaded and provided with a nut27, and cotter pin 28; while between said nut 27,, and the lug 25, isplaced on the rod 23, a compensating spring '29, which compensatesforthe variations in the distance between the clamp 26, and the pivot point30, has pivoted 'ters Patent is In an automobile buffer of the classdescribed, the combination with a bufl'er-bar of impact-cushioning armssecured to said buffer-bar, said arms being formed of telescopingmembers, a head formed'on the end of one of said members and adapted torestagainstthe end of the vehicle frame, bifurcatcd ears formed on saidhead and clamping arms pivoted in said ears, one of said clamping armsbeing adapted to be secured 15 to the vehicle frame in a rigid mannerand the other arm adapted to be secured to the spring of said vehicle inan adjustable manner.

In testimony whereof I afiix my signature 20 in presence of twowitnesses.

FREDERICK o. FEHRMAN.

Witnesses:

JOHN J. THOMPSON, WM. J COULTER.

